458 Works

Marine Isotope Stage 4 in Australasia: a full glacial culminating 65,000 years ago - global connections and implications for human dispersal, supplement to: De Deckker, Patrick; Arnold, Lee; van der Kaars, Sander; Bayon, Germain; Stuut, Jan-Berend W; Perner, Kerstin; Lopes dos Santos, Raquel A; Uemura, Ryu; Demuro, Martina (2018): Marine Isotope Stage 4 in Australasia: a full glacial culminating 65,000 years ago - global connections and implications for human dispersal. Quaternary Science Reviews, 204, 187-207

Patrick De Deckker, Lee Arnold, Sander van der Kaars, Germain Bayon, Jan-Berend W Stuut, Kerstin Perner, Raquel A Lopes dos Santos, Ryu Uemura & Martina Demuro
Over the last four decades of palaeoclimate research, significant emphasis has been placed on the Last Glacial Maximum (LGM) spanning 26.5-19 thousand years ago (ka), a period that saw significant (~125 m) sea-level reductions and major ice caps adorning large parts of the Northern Hemisphere. Here, we present evidence for another major glacial period spanning 71-59 ka (Marine Isotope Stage 4: MIS4) from a well-dated marine sequence offshore South Australia. The astronomically-tuned chronology of this...

Biomarkers (TEX86), planktic isotopes and XRF records of IODP Site 356-U1459 (Perth Basin), supplement to: De Vleeschouwer, David; Petrick, Benjamin F; Martínez‐García, Alfredo (2019): Stepwise weakening of the Pliocene Leeuwin Current. Geophysical Research Letters, 46(14), 8310-8319

David De Vleeschouwer, Benjamin F Petrick & Alfredo Martínez‐García
The Indonesian Throughflow (ITF) operates as an important link in global thermohaline circulation and ITF variability probably modulated Pliocene climate change. Yet, whether ITF variability accounted for oceanographic change south of Northwest Cape remains controversial. Here, we present a multi-proxy oceanographic reconstruction from the Perth Basin and reconstruct the Pliocene history of the Leeuwin Current (LC). We affirm the LC to be active throughout the Pliocene, albeit with fluctuations in intensity and scope. Three main...

Calcification and distribution of extant coccolithophores across the Drake Passage during late austral summer 2016, supplement to: Saavedra-Pellitero, Mariem; Baumann, Karl-Heinz; Fuertes, Miguel Ángel; Schulz, Hartmut; Marcon, Yann; Vollmar, Lindsay; Flores, José-Abel; Lamy, Frank (2019): Calcification and latitudinal distribution of extant coccolithophores across the Drake Passage during late austral summer 2016. Biogeosciences, 16(19), 3679-3702

Mariem Saavedra-Pellitero & Karl-Heinz Baumann
This study documents the latitudinal variability in the coccolithophore assemblage composition and the coccolith mass variation of the ecologically dominant Emiliania huxleyi across the Drake Passage. Ninety-six water samples were taken between 10 and 150 m water depth from 18 CTD stations during POLARSTERN Expedition PS97 (February-April, 2016). A minimum of 200 coccospheres per sample were classified in scanning electron microscope and coccolith mass was estimated with light microscopy, using the C-Calcita software.

Pollen data from lake sediment core CH06 spanning the last ~9000 cal. yr. BP, supplement to: Epp, Laura Saskia; Kruse, Stefan; Kath, Nadja J; Stoof-Leichsenring, Kathleen Rosmarie; Tiedemann, Ralph; Pestryakova, Luidmila A; Herzschuh, Ulrike (2018): Temporal and spatial patterns of mitochondrial haplotype and species distributions in Siberian larches inferred from ancient environmental DNA and modeling. Scientific Reports, 8(1), 17436

Laura Saskia Epp
Changes in species' distributions are classically projected based on their climate envelopes. For Siberian forests, which have a tremendous significance for vegetation-climate feedbacks, this implies future shifts of each of the forest-forming larch (Larix) species to the north-east. However, in addition to abiotic factors, reliable projections must assess the role of historical biogeography and biotic interactions. Here, we use sedimentary ancient DNA and individual-based modelling to investigate the distribution of larch species and mitochondrial haplotypes...

In-situ geothermal heat flow estimates and water column temperature profiles colected during RV POLARSTERN cruise PS104, 2017, supplement to: Dziadek, Ricarda; Gohl, Karsten; Kaul, Norbert E (2019): Elevated geothermal surface heat flow in the Amundsen Sea Embayment, West Antarctica. Earth and Planetary Science Letters, 506, 530-539

Ricarda Dziadek
This dataset compiles in-situ temperature measurements for geothermal heat flow estimates and water temperature profiles of the water column, extracted from Miniaturized Temperature data-Logger (MTL). The data were collected during RV POLARSTERN cruise PS104 in 2017 in Amundsen Sea.

XRF measurements on split-core surfaces and on individual core samples of IODP Expedition 313 holes

Jenny Inwood, A McGrath, S Morgan, Michael J Norry, S Davies & H Foster
Integrated Ocean Drilling Program Expedition 313 recovered siliciclastic sediments from three holes cored through a series of Miocene clinoforms offshore New Jersey. The clinoform sequence that lies between seismic reflectors m5.2 and m4.1 has been dated as mid-Miocene within an interval of major climatic change and displays interesting sedimentological and petrophysical features. However, the depth ties between surfaces in the recovered succession and seismic reflectors, correlation across sites, and depositional environments are not all well...

Organic biomarkers from ODP sites 151-907 and 151-911, used to reconstruct the surface temperatures and sea ice conditions in the Pliocene Nordic Seas, supplement to: Clotten, Caroline; Stein, Ruediger; Fahl, Kirsten; Schreck, Michael; Risebrobakken, Bjørg; De Schepper, Stijn (2019): On the causes of Arctic sea ice in the warm Early Pliocene. Scientific Reports, 9(1)

Caroline Clotten, Ruediger Stein, Kirsten Fahl, Michael Schreck, Bjørg Risebrobakken & Stijn De Schepper
This dataset consists of organic biomarkers used to reconstruct the sea surface temperature and sea ice conditions in the Pliocene Nordic Seas. Specifically, it includes alkenone, IP25 and sterol data from the Pliocene of two Ocean Drilling Program sites, ODP Site 907 in the Iceland Sea and ODP Site 911 on the Yermak Plateau (Arctic Ocean).

List of number of microsatellite repeats for fungus specific locus in stands of Cetraria aculeata, Usnea antarctica and U. aurantiacoatra, supplement to: Lagostina, Elisa; Dal Grande, Francesco; Scur, M; Lorenz, Andrea; Andreev, M; Ruprecht, U; Søchting, U; Sancho, L G; Wirtz, Nora; Rozzi, R; Printzen, Christian (in prep.): Genetic structure and gene flow of three lichens forming fungi in the Maritime Antarctic and southern South America. Journal of Biogeography

Elisa Lagostina
Eight consistently amplifying markers were used for Cetraria aculeata. Samples of Usnea aurantiacoatra and U. antarctica were genotyped using 21 and 22 microsatellites markers, respectively. Detailed information on primers and PCR amplification can be found in Lutsak et al. (2016) and Lagostina et al. (2017). PCR amplicons were electrophoresed using an Applied Biosystems 3730 sequencer, with the LIZ 500 (C. aculeata)or LIZ 600 (Usnea sp.) size standards (Applied Biosystems, Waltham, Mass., USA). Allele sizes were...

Activity Ratios, concentrations, calculated and model ages of LIG fossil reef corals from Aqaba, Jordan, supplement to: Obert, J Christina; Scholz, Denis; Felis, Thomas; Lippold, Jörg; Jochum, Klaus Peter; Andreae, Meinrat O (2019): Improved constraints on open-system processes in fossil reef corals by combined Th/U, Pa/U and Ra/Th dating: A case study from Aqaba, Jordan. Geochimica et Cosmochimica Acta, 245, 459-478

J Christina Obert, Denis Scholz, Thomas Felis, Jörg Lippold, Klaus Peter Jochum & Meinrat O Andreae
Here we present 230Th/U, 231Pa/U as well as 226Ra/230Th isotope ratios from five fossil reef corals of Last Interglacial origin from the Gulf of Aqaba, Northern Red Sea. The results show clear evidence for open-system behaviour with strongly elevated δ234U values and U concentrations indicating post-depositional U addition. The combined application of all isotope systems enables us to better constrain the nature and timing of the open-system processes than only based on the 230Th/U data.Quantitative...

Heat flow data of RV Sonne cruise SO251/2

Norbert E Kaul & Achim J Kopf
Marine heat flow data, sampled by a 22-channel violin bow probe offshore Japan in 2016. Data are unfiltered, that is, they are measured field data, not necessarily refecting geothermal heat flux. The data are correct in a technical way but they are influenced by mud volcanism, gas hydrates and bottom water currents.

Holocene bulk and n-alkane organic geochemical proxies from cores MD05-2905 and GeoB16601-5 from the Northern South China Sea, supplement to: Contreras-Rosales, Lorena Astrid; Jennerjahn, Tim C; Steinke, Stephan; Mohtadi, Mahyar; Schefuß, Enno (2019): Holocene changes in biome size and tropical cyclone activity around the Northern South China Sea. Quaternary Science Reviews, 215, 45-63

Lorena Astrid Contreras-Rosales, Tim C Jennerjahn, Stephan Steinke, Mahyar Mohtadi & Enno Schefuß
The South China Sea (SCS), characterized by a large continental shelf, is located at the edge of the Asian monsoon domain. In this study, two marine sediment cores from the northern SCS (NSCS) continental slope were investigated to construct composite vegetation and precipitation isotopic composition records based on the δ13C and δD values of plant-wax n-alkanes throughout the Holocene (last 11,200 years; i.e. 11.2 ka). The composite δ13Cwax record indicates an overall predominance of C3...

Radiocarbon dating, grain size analyses, and XRF data on sediments from the Hauraki Gulf, New Zealand, supplement to: Boxberg, Florian; Blossier, Brice; de Lange, Willem P; Fox, Bethany R Storrs; Hebbeln, Dierk (2020): Sediment deposition in the central Hauraki Gulf, New Zealand. Geo-Marine Letters, 40(2), 227-241

Dierk Hebbeln & Florian Boxberg
Based on the analysis of 14 short sediment cores, we present new insights into the distribution of surficial sediments in the central Hauraki Gulf, a semi-enclosed coastal embayment on the northeast coast of New Zealand's North Island. We identify and discuss the effects of interaction of modern wind-generated waves and currents with regard to deposition and reworking of sediments in the Gulf. The modern hydrodynamic regime is controlled by tidal currents, oceanic inflows, and wave-induced...

Reconstructed sea surface temperature of sediment core GeoB16224-1, off French Guiana, supplement to: Crivellari, Stefano; Chiessi, Cristiano Mazur; Kuhnert, Henning; Häggi, Christoph; Mollenhauer, Gesine; Hefter, Jens; Portilho-Ramos, Rodrigo Costa; Schefuß, Enno; Mulitza, Stefan (2019): Thermal response of the western tropical Atlantic to slowdown of the Atlantic Meridional Overturning Circulation. Earth and Planetary Science Letters, 519, 120-129

Stefano Crivellari, Cristiano Mazur Chiessi, Henning Kuhnert, Christoph Häggi, Gesine Mollenhauer, Jens Hefter, Rodrigo Costa Portilho-Ramos, Enno Schefuß & Stefan Mulitza
The western tropical Atlantic plays an important role in the interhemispheric redistribution of heat during millennial-scale changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC). The proper evaluation of this role depends on a clear understanding of sea surface temperature (SST) variations during AMOC slowdown periods like Heinrich Stadials (HS) in the western tropical Atlantic. However, published SST records from the western tropical Atlantic between ca. 4°S and 7°N show inconsistencies that are...

Palynology, biomarkers and droplet digital PCR data from the Late Quaternary of Site GS15-198-38, Greenland Sea, supplement to: De Schepper, Stijn; Ray, Jessica L; Skaar, Katrine S; Sadatzki, Henrik; Ijaz, Umer Zeeshan; Stein, Ruediger; Larsen, Aud (2019): The potential of sedimentary ancient DNA for reconstructing past sea ice evolution. The ISME Journal

Stijn De Schepper, Jessica L Ray, Katrine S Skaar, Henrik Sadatzki, Umer Zeeshan Ijaz, Ruediger Stein & Aud Larsen
At Site GS15-198-38, Greenland Sea, we analysed the surface sample (from a multicore) and eight Late Quaternary samples from a Calypso core. The age model for the Calypso core GS15-198-38CC is based on seven AMS 14C ages down to 345 cm, and a 5-cm resolution N. pachyderma sinistral isotope stratigraphy (1) below that level. We analysed the palynology, generated organic biomarker data (including IP25, sterols) and performed quantitative PCR (droplet digital PCR, ddPCR) of the...

Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014, supplement to: Thomsen, Soeren; Karstensen, Johannes; Kiko, Rainer; Krahmann, Gerd; Dengler, Marcus; Engel, Anja (2019): Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014. Biogeosciences, 16(5), 979-998

Soeren Thomsen, Johannes Karstensen, Rainer Kiko, Gerd Krahmann, Marcus Dengler & Anja Engel
Upwelling systems play a key role in the global carbon and nitrogen cycles and are also of local relevance due to their high productivity and fish resources. To capture and understand the high spatial and temporal variability of physical and biogeochemical parameters found in these regions novel measurement technics have to be combined in an interdisciplinary manner. Here we use high-resolution glider-based physical-biogeochemical observations in combination with ship-based underwater vision profiler, sensor and bottle data...

In Situ Growth and Bioerosion Rates of Lophelia pertusa in a Norwegian Fjord and Open Shelf Cold-water Coral Habitat, supplement to: Büscher, Janina; Wisshak, Max; Form, Armin; Titschack, Jürgen; Nachtigall, Kerstin; Riebesell, Ulf (2019): In situ growth and bioerosion rates of Lophelia pertusa in a Norwegian fjord and open shelf cold-water coral habitat. PeerJ, 7, e7586

Janina Büscher, Max Wisshak, Armin Form, Jürgen Titschack, Kerstin Nachtigall & Ulf Riebesell
Coral reef resilience depends on the balance between carbonate precipitation, leading to reef growth, and carbonate degradation, e.g. through bioerosion. Changes in environmental conditions are likely to affect the two processes differently, thereby shifting the balance between reef growth and degradation. In cold-water corals estimates of accretion-erosion processes in their natural habitat are scarce and solely live coral growth rates were studied with regard to future environmental changes in the laboratory so far, limiting our...

Continuous current and wave measurements (since 2010) recorded by ADCP deployed at the OBSEA cabled underwater observatory

Joaquin Del Rio, Marc Nogueras Cervera, Daniel Mihai Toma, Javier Cadena Muñoz, Júlia Crespin, Enoc Martinez Padro, Matias Carandell Widmer, Ivan Masmitjà Rusiñol, Carola Artero Delgado, Ikram Bghiel, Marc Martínez, David Sarrià Gandul, Albert Garcia-Benadí, Spartacus Gomariz Castro, Antonio Manuel Lazaro, Joaquim Olive Duran & Pep Santamaria
This collection of datasets contains current and wave data measured by an ADCP instrument related to the OBSEA platform since Mar, 2010. OBSEA is a permanent underwater cabled seabed observatory located in front of the Catalan's coast near Barcelona, at 20 m depth which is used as a test site for different experiments related with marine sensors. It has a sea station and a ground station, which include a surface buoy equipped with weather station...

Saharan Dust Proxy Record from a Colle Gnifetti Ice Core (KCC), supplement to: Clifford, Heather; Spaulding, Nicole; Kurbatov, Andrei; More, Alexander; Korotkikh, Elena; Sneed, Sharon B; Handley, Kim M; Maasch, Kirk A; Loveluck, Christopher; Chaplin, Joyce; McCormick, Michael; Mayewski, Paul Andrew (2019): A 2000 Year Saharan Dust Event Proxy Record from an Ice Core in the European Alps. Journal of Geophysical Research: Atmospheres, 124(23), 12882-12900

Heather Clifford, Nicole Spaulding, Andrei Kurbatov, Alexander More, Elena Korotkikh, Sharon B Sneed, Kim M Handley, Kirk A Maasch, Christopher Loveluck, Joyce Chaplin, Michael McCormick & Paul Mayewski
Dust events originating from the Saharan desert have far reaching environmental impacts but the causal mechanism of magnitude and occurrence of Saharan dust events (SDEs) during the pre-instrumental era requires further research, particularly as a potential analog for future climate. Using an ultra-high resolution glacio-chemical record from the 2013 Colle Gnifetti (CG) ice core drilled in the Swiss-Italian Alps we reconstructed a 2000 year-long summer Saharan dust record. We analyzed both modern (1780-2006) and pre-modern...

Epibenthic megafauna characteristics in the Emerald Basin during CCGS Hudson cruise HUD-2011-010, supplement to: Hawkes, Nickolas; Korabik, Michelle; Beazley, Lindsay; Rapp, Hans Tore; Xavier, Joana R; Kenchington, Ellen L (2019): Glass sponge grounds on the Scotian Shelf and their associated biodiversity. Marine Ecology Progress Series, 614, 91-109

Nickolas Hawkes, Michelle Korabik, Lindsay Beazley, Hans Tore Rapp, Joana R Xavier & Ellen L Kenchington
Emerald Basin on the Scotian Shelf off Nova Scotia, Canada, is home to a globally unique population of the glass sponge Vazella pourtalesi. Through the analysis of both in situ photographs and trawl catch data from annual multispecies bottom-trawl surveys, we examined community composition, species density, and abundance of epibenthos and fish associated with V. pourtalesi compared to locations without this sponge. Using generalized linear models and analysis of similarities, the importance of V. pourtalesi...

Basic and other measurements of radiation at station Alert (ALE), reference list of 115 datasets (2004-08 to 2014-02)

Christopher J Cox & David Halliwell
Any user who accepts the BSRN data release guidelines (http://bsrn.awi.de/data/conditions-of-data-release) may ask Amelie Driemel (Amelie.Driemel@awi.de) to obtain an account to download the datasets mentioned here.

Depth-related differences in archaeal populations impact the isoprenoid tetraether lipid composition of the Mediterranean Sea water column, supplement to: Besseling, Marc; Hopmans, Ellen C; Koenen, Michel; van der Meer, Marcel T J; Vreugdenhil, Sanne; Schouten, Stefan; Sinninghe Damsté, Jaap S; Villanueva, Laura (2019): Depth-related differences in archaeal populations impact the isoprenoid tetraether lipid composition of the Mediterranean Sea water column. Organic Geochemistry, 135, 16-31

Marc Besseling, Ellen C Hopmans, Michel Koenen, Marcel T J van der Meer, Sanne Vreugdenhil, Stefan Schouten, Jaap S Sinninghe Damsté & Laura Villanueva
Thaumarchaeota are one of the most abundant groups of Archaea in the marine water column. Their membrane consists of isoprenoid glycerol dibiphytanyl glycerol tetraethers (GDGTs) which are applied in the widely used TEX86 proxy to reconstruct past sea surface temperatures (SSTs). However, in some specific marine systems, such as the Mediterranean Sea, core-top TEX86-derived temperatures do not seem to reflect annual mean SSTs. This has been attributed to contributions of deep-water dwelling Thaumarchaeota. Here, we...

Continuous meteorological observations at Neumayer station (2010-2018),reference list of 108 datasets

Holger Schmithüsen, Gert König-Langlo, Hanno Müller & Hauke Schulz

Extension of the dataset \"Hydrological and meteorological investigations in a periglacial lake catchment near Kangerlussuaq, West Greenland\"

Emma Johansson
The dataset contains hydrological and meteorological data from a lake catchment in the Kangerlussuaq region, Western Greenland. The investigations were performed during 2010-2018 and the following parameters are included:Soil moisture, Soil temperature, Hydraulic properties of the active layer, water levels and discharge, sublimation and evaporation measurements, snow depth and snow water content data and time lapse photos. The meteorological parameters that was included in the previous submission can be downloaded from another database (reference in...

Cloud top altitudes observed with airborne lidar during the ACLOUD campaign

Roland Neuber, Lukas Valentin Schmidt, Christoph Ritter & Mario Mech
During the ACLOUD (Arctic CLoud Observations Using airborne measurements during polar Day) campaign conducted in May / June 2017, the Airborne Mobile Aerosol Lidar (AMALi) was used to measure the cloud top altitude of clouds below the aircraft Polar 5. The data set provides cloud top altitude along the flight tracks of 14 flights performed by the Polar 5 aircraft in 5 Hz resolution.

Measurements on the 10m meteorological and turbulence mast during the Arctic field campaign PASCAL in June 2017, supplement to: Egerer, Ulrike; Gottschalk, Matthias; Siebert, Holger; Ehrlich, André; Wendisch, Manfred (2019): The new BELUGA setup for collocated turbulence and radiation measurements using a tethered balloon: first applications in the cloudy Arctic boundary layer. Atmospheric Measurement Techniques, 12(7), 4019-4038

Ulrike Egerer & Holger Siebert
The 10 m meteorological and turbulence mast was operated on an ice floe next to RV Polarstern in the period 4 to 16 June 2017. The measurements were taken during the PASCAL (Physical feedbacks of Arctic planetary boundary level Sea ice, Cloud and AerosoL) campaign. The mast was installed around 150m from the ship, with the coordinates 10.950°E, 81.928°N (measured on 5 June 2017, 19h UTC). The mast was equipped with an ultrasonic anemometer at...

Registration Year

  • 2019
    458

Resource Types

  • Collection
    458

Affiliations

  • University of Iowa
    2
  • Boston University
    1